Remove parts of //cc we aren't using

cc/animation/animation_registrar.h

-// Copyright 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CC_ANIMATION_ANIMATION_REGISTRAR_H_
-#define CC_ANIMATION_ANIMATION_REGISTRAR_H_
-
-#include "base/containers/hash_tables.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "cc/animation/animation_events.h"
-#include "cc/base/cc_export.h"
-
-namespace cc {
-
-class LayerAnimationController;
-
-class CC_EXPORT AnimationRegistrar {
- public:
-  typedef base::hash_map<int, LayerAnimationController*> AnimationControllerMap;
-
-  static scoped_ptr<AnimationRegistrar> Create() {
-    return make_scoped_ptr(new AnimationRegistrar());
-  }
-
-  virtual ~AnimationRegistrar();
-
-  // If an animation has been registered for the given id, return it. Otherwise
-  // creates a new one and returns a scoped_refptr to it.
-  scoped_refptr<LayerAnimationController> GetAnimationControllerForId(int id);
-
-  // Registers the given animation controller as active. An active animation
-  // controller is one that has a running animation that needs to be ticked.
-  void DidActivateAnimationController(LayerAnimationController* controller);
-
-  // Unregisters the given animation controller. When this happens, the
-  // animation controller will no longer be ticked (since it's not active). It
-  // is not an error to call this function with a deactivated controller.
-  void DidDeactivateAnimationController(LayerAnimationController* controller);
-
-  // Registers the given controller as alive.
-  void RegisterAnimationController(LayerAnimationController* controller);
-
-  // Unregisters the given controller as alive.
-  void UnregisterAnimationController(LayerAnimationController* controller);
-
-  const AnimationControllerMap& active_animation_controllers_for_testing()
-      const {
-    return active_animation_controllers_;
-  }
-
-  const AnimationControllerMap& all_animation_controllers_for_testing() const {
-    return all_animation_controllers_;
-  }
-
-  void set_supports_scroll_animations(bool supports_scroll_animations) {
-    supports_scroll_animations_ = supports_scroll_animations;
-  }
-
-  bool supports_scroll_animations() { return supports_scroll_animations_; }
-
-  bool needs_animate_layers() const {
-    return !active_animation_controllers_.empty();
-  }
-
-  bool ActivateAnimations();
-  bool AnimateLayers(base::TimeTicks monotonic_time);
-  bool UpdateAnimationState(bool start_ready_animations,
-                            AnimationEventsVector* events);
-
-  scoped_ptr<AnimationEventsVector> CreateEvents() {
-    return make_scoped_ptr(new AnimationEventsVector());
-  }
-
-  void SetAnimationEvents(scoped_ptr<AnimationEventsVector> events);
-
- private:
-  AnimationRegistrar();
-
-  AnimationControllerMap active_animation_controllers_;
-  AnimationControllerMap all_animation_controllers_;
-
-  bool supports_scroll_animations_;
-
-  DISALLOW_COPY_AND_ASSIGN(AnimationRegistrar);
-};
-
-}  // namespace cc
-
-#endif  // CC_ANIMATION_ANIMATION_REGISTRAR_H_